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  <title>Messaging operations</title>

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  <h2 class="title">Messaging operations</h2>
  <p class="para">
   All messaging operations are performed through calls to methods on the
   connection object.
   To add a message to a queue the &quot;send&quot; method is used, to obtain a
   message from a queue the &quot;receive&quot; method is used. Other methods
   provide publish and subscribe functionality and control of transaction
   boundaries.
  </p>
  <p class="para">
   <div class="example" id="example-4416">
    <p><strong>Example #1 Adding a message to a queue and receiving a response</strong></p>
    <div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br />$msg&nbsp;</span><span style="color: #007700">=&nbsp;new&nbsp;</span><span style="color: #0000BB">SAMMessage</span><span style="color: #007700">(</span><span style="color: #DD0000">'This&nbsp;is&nbsp;a&nbsp;simple&nbsp;text&nbsp;message'</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$msg</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">header</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">SAM_REPLY_TO&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #DD0000">'queue://receive/test'</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$correlid&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">$conn</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">send</span><span style="color: #007700">(</span><span style="color: #DD0000">'queue://send/test'</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$msg</span><span style="color: #007700">);<br /><br />if&nbsp;(!</span><span style="color: #0000BB">$correlid</span><span style="color: #007700">)&nbsp;{<br />&nbsp;&nbsp;</span><span style="color: #FF8000">//&nbsp;The&nbsp;Send&nbsp;failed!<br />&nbsp;&nbsp;</span><span style="color: #007700">echo&nbsp;</span><span style="color: #DD0000">"Send&nbsp;failed&nbsp;(</span><span style="color: #0000BB">$conn</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">errno</span><span style="color: #DD0000">)&nbsp;</span><span style="color: #0000BB">$conn</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">error</span><span style="color: #DD0000">"</span><span style="color: #007700">;<br />}&nbsp;else&nbsp;{<br />&nbsp;&nbsp;</span><span style="color: #0000BB">$resp&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">$conn</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">receive</span><span style="color: #007700">(</span><span style="color: #DD0000">'queue://receive/test'</span><span style="color: #007700">,&nbsp;array(</span><span style="color: #0000BB">SAM_CORRELID&nbsp;</span><span style="color: #007700">=&gt;&nbsp;</span><span style="color: #0000BB">$correlid</span><span style="color: #007700">));<br />}<br /></span><span style="color: #0000BB">?&gt;</span>
</span>
</code></div>
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